CN107000445B - Doughnut degassing component and ink-jet printer - Google Patents

Doughnut degassing component and ink-jet printer Download PDF

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Publication number
CN107000445B
CN107000445B CN201580064887.3A CN201580064887A CN107000445B CN 107000445 B CN107000445 B CN 107000445B CN 201580064887 A CN201580064887 A CN 201580064887A CN 107000445 B CN107000445 B CN 107000445B
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China
Prior art keywords
ink
hollow
doughnut
fibre membrane
hollow fiber
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Active
Application number
CN201580064887.3A
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Chinese (zh)
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CN107000445A (en
Inventor
菅沼洋平
大井和美
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DIC Corp
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Dainippon Ink and Chemicals Co Ltd
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Publication of CN107000445A publication Critical patent/CN107000445A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D19/00Degasification of liquids
    • B01D19/0031Degasification of liquids by filtration
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D19/00Degasification of liquids
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D19/00Degasification of liquids
    • B01D19/0036Flash degasification
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D61/00Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D63/00Apparatus in general for separation processes using semi-permeable membranes
    • B01D63/02Hollow fibre modules
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D63/00Apparatus in general for separation processes using semi-permeable membranes
    • B01D63/02Hollow fibre modules
    • B01D63/031Two or more types of hollow fibres within one bundle or within one potting or tube-sheet
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D63/00Apparatus in general for separation processes using semi-permeable membranes
    • B01D63/02Hollow fibre modules
    • B01D63/04Hollow fibre modules comprising multiple hollow fibre assemblies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D71/00Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06Organic material
    • B01D71/26Polyalkenes
    • B01D71/261Polyethylene
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D71/00Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06Organic material
    • B01D71/26Polyalkenes
    • B01D71/262Polypropylene
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01Ink jet
    • B41J2/17Ink jet characterised by ink handling
    • B41J2/175Ink supply systems ; Circuit parts therefor
    • B41J2/17596Ink pumps, ink valves
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01Ink jet
    • B41J2/17Ink jet characterised by ink handling
    • B41J2/19Ink jet characterised by ink handling for removing air bubbles

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Degasification And Air Bubble Elimination (AREA)
  • Ink Jet (AREA)

Abstract

A kind of doughnut degassing component, includes hollow fiber membrane bundle, is by more hollow-fibre membrane boundlings at made of cylindrical shape;And cylinder, it accommodates the hollow fiber membrane bundle and extends in the axial direction, to the gap between the hollow-fibre membrane liquid is supplied by the hollow portion from the hollow fiber membrane bundle and to depressurizing on the inside of the hollow-fibre membrane, to be de-gassed to the liquid, wherein, the doughnut degassing component has the supporting mass abutted with the inner peripheral surface of the hollow fiber membrane bundle.

Description

Doughnut degassing component and ink-jet printer
Technical field
The doughnut degassing component that is de-gassed the present invention relates to a kind of pair of liquid and there is doughnut degassing The ink-jet printer of component.
Background technique
Ink-jet printer is the printer by the way of directly blowing the ink after droplet to print media.In this way Ink-jet printer in printing, it is possible to the dissolved gas gas in ink due to the pressure oscillation inside ink storage unit Change, spray nozzle clogging occurs.As a result, in the presence of the risk for being decreased obviously press quality.The problem when used for a long time with And it is significantly shown when running at high speed.In order to solve the problems, effective method is to carry out removing dissolution from ink The degassing of gas and bubble.As effectively to the method for ink degassing, being disclosed directly below in patent document 1, from ink Storage unit installed and used into the ink flow path of ink gun hollow-fibre membrane doughnut degassing component, continuously to ink into Row degassing.The doughnut degassing component recorded in patent document 1 is the doughnut degassing component of external pouring type, boundling Hollow fiber membrane bundle made of more hollow-fibre membranes is accommodated in cylinder.Also, by being supplied to the outside of hollow-fibre membrane Ink and ink is de-gassed to being depressurized on the inside of hollow-fibre membrane, self-forming is in the outlet of the side wall of cylinder Ink after discharge degassing.
In addition, ink-jet printer utilizes the self weight of ink mostly, ink is supplied from ink storage unit to ink gun.Cause This, doughnut degassing component is required to further suppress the pressure loss of ink.The component but common doughnut deaerates Configured with the ink distribution pipe through cylinder on the inside of the radial direction of hollow fiber membrane bundle.The ink distribution pipe is in order to hollow Fiber-film bundle is integrally uniformly distributed ink and forms multiple holes in specified position.But if by ink distribution pipe to hollow Fiber-film bundle supplies ink, then the pressure loss of ink is got higher.Therefore, in documents 2, in order to reduce the pressure damage of ink It loses, proposes a kind of manufacturing method of doughnut degassing component for being not provided with ink distribution pipe.
Existing technical literature
Patent document
Patent document 1: International Publication No. 2007/063720
Patent document 2: Japanese Patent Publication No. 4730483
Summary of the invention
Problems to be solved by the invention
In recent years, as the ink for ink-jet printer, using being dispersed with made of ceramic powders in organic solvent Ceramic ink.But if be de-gassed using the doughnut degassing component recorded in patent document 2 to ceramic ink, It then can there is a situation where ink liquor charging is bad after a couple of days.Therefore, the present inventors discusses the reason, as a result it is found that With ink degassing concomitantly doughnut degassing component the pressure loss steeply rise, thus occur ink liquor charging it is bad.
Therefore, the purpose of a technical solution of the invention is, provides and a kind of is able to suppress what the pressure loss steeply rose Doughnut degassing component and ink-jet printer.
The solution to the problem
The present inventors to achieve the goals above, to doughnut degassing component the pressure loss steeply rise the reason of It is discussed.Its result has obtained following opinion: when ink flows in doughnut degassed ink, hollow-fibre membrane because Ink and be swollen, so that the flow path of ink be made to narrow or block, thus cause the pressure loss of doughnut degassing module anxious Play rises.If specifically describing, since cylinder is fixed at the both ends of hollow fiber membrane bundle, if hollow-fibre membrane is molten Swollen, then hollow-fibre membrane distorts and becomes flat.Moreover, being formed on the inside of the radial direction of hollow fiber membrane bundle as ink Flow path hollow portion.Therefore, the hollow-fibre membrane of swelling enters the hollow portion, and hollow portion is caused to narrow or block.In addition, Between gap between hollow-fibre membrane also becomes the flow path of ink, but the hollow-fibre membrane being swollen causes between hollow-fibre membrane Gap also narrows or blocks.The present invention is namely based on above-mentioned opinion and completes.
That is, doughnut involved in a technical solution of the invention degassing component include hollow fiber membrane bundle, be by More hollow-fibre membrane boundlings are at made of cylindrical shape;And cylinder, it accommodates hollow fiber membrane bundle and extends in the axial direction, By the hollow portion from hollow fiber membrane bundle to the gap supply liquid between hollow-fibre membrane and in hollow-fibre membrane Side is depressurized, and to be de-gassed to liquid, doughnut degassing component has to abut with the inner peripheral surface of hollow fiber membrane bundle Supporting mass.
The degassing component of doughnut involved in a technical solution of the invention is by supplying to the outside of hollow-fibre membrane To liquid and to the external pouring type depressurized on the inside of hollow-fibre membrane to be de-gassed to liquid.Therefore, it can incite somebody to action The pressure loss of liquid inhibits lower.Also, in doughnut degassing component, due to having and hollow fiber membrane bundle The supporting mass that inner peripheral surface abuts, therefore utilize radial direction center side bearing each doughnut of the supporting mass from hollow fiber membrane bundle Film.Therefore, even if hollow-fibre membrane is swollen because of liquid, also it is able to suppress hollow-fibre membrane distortion.That is, being able to suppress swelling Hollow-fibre membrane enters the hollow portion of the hollow fiber membrane bundle of the flow path as liquid and the hollow portion is made to narrow or block.Separately Outside, the gap turn narrow or obstruction being able to suppress between the hollow-fibre membrane of the hollow-fibre membrane of swelling.As described above, in even if Empty fiber membrane swelling, the flow path for being also able to suppress liquid narrow or block, and therefore, are able to suppress doughnut degassing component The pressure loss steeply rises.
In above-mentioned hollow fiber film assembly, it is also possible to supporting mass for cylindrical shape.
In above-mentioned hollow fiber film assembly, it is netted for being also possible to supporting mass.
In above-mentioned hollow fiber film assembly, it is also possible to supporting mass in the central axial direction of hollow-fibre membrane Configuration is between a side end face and another side end face for hollow fiber membrane bundle.
Ink-jet printer involved in a technical solution of the invention is will to be stored in ink storage unit by ink flow path In the ink-jet printer that is supplied to ink gun of ink, wherein any of the above-described kind of doughnut is installed in ink flow path Deaerate component.
In the ink-jet printer involved in a technical solution of the invention, due to being equipped among the above in ink flow path Hollow fiber degassing component, therefore be able to suppress the pressure loss in ink flow path and steeply rise, and can be chronically to ink It is de-gassed.
The effect of invention
Using a technical solution of the invention, it is able to suppress steeply rising for the pressure loss.
Detailed description of the invention
Fig. 1 is the schematic configuration diagram of ink-jet printer involved in embodiment.
Fig. 2 is the schematic sectional view of the degassing component of doughnut involved in embodiment.
Fig. 3 is the partial enlarged view of hollow fiber membrane bundle shown in Fig. 2.
Fig. 4 is the cross-sectional view of IV-IV line shown in Fig. 2.
Fig. 5 is the perspective view of supporting mass.
Fig. 6 is the perspective view of supporting mass.
Fig. 7 is the schematic configuration diagram of hookup.
Fig. 8 is that the experimental result of embodiment 1 is made into figure obtained from curve graph.
Fig. 9 is that the experimental result of embodiment 2 is made into figure obtained from curve graph.
Figure 10 is that the experimental result of embodiment 3 is made into figure obtained from curve graph.
Figure 11 is that the experimental result of comparative example 1 is made into figure obtained from curve graph.
Specific embodiment
In the following, the doughnut degassing component and ink-jet printer of embodiment is described in detail with reference to accompanying drawings.This reality The doughnut degassing component for applying mode is to apply doughnut degassing component of the invention in being de-gassed to ink Doughnut degassing component in hollow fiber degassing component.In addition, being marked in whole attached drawings for same or equivalent part Identical appended drawing reference is infused, the repetitive description thereof will be omitted.
Fig. 1 is the schematic configuration diagram of ink-jet printer involved in embodiment.As shown in Figure 1, involved by embodiment Ink-jet printer 11 mainly include storage ink ink tank etc. ink storage unit 12;Ink gun 13, by droplet Ink afterwards is directly blowed to print media;First ink supply conduit 14 supplies ink from ink storage unit 12;Second ink Supply pipe 15 supplies ink to ink gun 13;The degassing component 1 of doughnut involved in embodiment, is mounted on first On ink supply conduit 14 and the second ink supply conduit 15, ink is de-gassed;Suction pump 16 carries out vacuum attraction;With And air intake duct 17, suction pump 16 and doughnut degassing component 1 are connected.In addition, the first ink supply conduit 14 and Two ink supply conduits 15 are the ink flow paths from ink storage unit 12 to ink gun 13.As used in the ink-jet printer 11 Ink is not particularly limited, for example, water-based ink, UV ink, solvent-based inks and ceramic ink can be enumerated.
Fig. 2 is the schematic sectional view of the degassing component of doughnut involved in embodiment.Fig. 3 is shown in Fig. 2 hollow The partial enlarged view of fiber-film bundle.Fig. 4 is the cross-sectional view of IV-IV line shown in Fig. 2.As shown in Figure 1 to 4, doughnut is de- Pneumatic module 1 includes hollow fiber membrane bundle 3, is by more 2 boundlings of hollow-fibre membrane at made of cylindrical shape;Supporting mass 10, It is abutted with the inner peripheral surface 3a of hollow fiber membrane bundle 3;And shell 4, it is used to accommodate hollow fiber membrane bundle 3.Doughnut degassing Component 1 is by the hollow portion 3b from hollow fiber membrane bundle 3 to the gap supply ink between hollow-fibre membrane 2 and to hollow fibre The inside of dimension film 2 is depressurized, to be de-gassed to ink.Hollow portion 3b is positioned at the hollow fiber membrane bundle for being formed as cylindrical shape Hollow part on the inside of 3 radial direction.In addition, each hollow-fibre membrane 2 is roughly recorded in Fig. 4, with actual shape It is different.
Hollow-fibre membrane 2 is the film that gas can be made to penetrate and cannot make the hollow fiber of penetration by liquid.Hollow-fibre membrane 2 With the property being swollen by ink.The material of hollow-fibre membrane 2, film shape, film form etc. are not particularly limited.Make The polyolefin-based resins such as polypropylene, poly- (4- methylpentene -1), poly dimethyl silicon can be for example enumerated for the material of hollow-fibre membrane 2 The silicon system resins such as its copolymer of oxygen alkane, the fluorine resins such as PTFE, vinylidene fluoride.Film shape (side wall as hollow-fibre membrane 2 Shape) can for example enumerate multiple aperture plasma membrane, microporous membrane, the homogeneous membrane (nonporous membrane) without Porous.As hollow fibre The film form of dimension film 2 can for example enumerate film it is whole chemically or the symmetric membrane of Physical Property Structure homogeneous (homogeneous membrane), film Chemically or Physical Property Structure is according to the different and different anisotropic membranes (uneven plasma membrane) of the part of film.Anisotropic membrane is (no Homogeneous membrane) it is the film with the compacted zone and Porous of non-porous matter.In this case, compacted zone can be formed in the surface layer of film Any position in film inside part or multiple aperture plasma membrane etc..Also comprising different compound of chemical constitution in uneven plasma membrane Film, the such multi-ply construction film of 3 layers of construction.Particularly use the uneven plasma membrane of poly- (4- methylpentene -1) resin due to having The compacted zone of liquid barrier, thus it is particularly preferred for the degassing to such as ink of the liquid other than water.In addition, for outside In the case where the doughnut of pouring type, preferably compacted zone is formed in doughnut outer surface.
Hollow fiber membrane bundle 3 can be for example, by being woven into hollow-fibre membrane made of curtain shape for multiple hollow-fibre membranes 2 Piece (not shown) is formed.It in this case, such as can there are 30~90 hollow-fibre membranes 2 by every 1 inch The doughnut diaphragm of composition forms hollow fiber membrane bundle 3.Being formed on the inside of the radial direction of hollow fiber membrane bundle 3 becomes The hollow portion 3b of the flow path of ink.Hollow portion 3b is marked off by the inner peripheral surface 3a of hollow fiber membrane bundle 3.
Fig. 5 and Fig. 6 is the perspective view of supporting mass.As shown in Fig. 2~Fig. 6, supporting mass 10 is and hollow fiber membrane bundle 3 Inner peripheral surface 3a is abutted and from the component of side bearing hollow-fibre membrane 2 in the radial direction of hollow fiber membrane bundle 3.The formation of supporting mass 10 For cylindric (tubulose).The outer diameter of supporting mass 10 becomes the size roughly the same with the internal diameter of hollow fiber membrane bundle 3.Supporting mass 10 The pressure loss of ink that can for example pass through on the inside of the radial direction in supporting mass 10 of thickness it is suitable in the range of do not increase Preferably set.In addition, the thickness of supporting mass 10 for example can suitably be set in the range of can support hollow-fibre membrane 2 of swelling It is fixed.
Supporting mass 10 is formed as netted.Multiple threadiness portions 101 connection that is netted to refer to, extending in different directions, and The shape of mesh 102 is formed using multiple threadiness portions 101.Therefore, supporting mass 10 does not have as existing water supplying pipe in The whole function that ink is uniformly distributed of hollow fiber perineurium 3.As the shape of mesh 102, for example, can enumerate square, rectangle, Pentagon, hexagon, circle, ellipse etc..The percent opening of supporting mass 10 can for example be set as 10% or more range, preferably set For 20% or more and 80% range below, it is more preferably set as 30% or more and 60% range below.In addition, supporting mass 10 Percent opening refers to, ratio of the mesh 102 relative to the area of the outer peripheral surface of the supporting mass 10 comprising mesh 102.
Supporting mass 10 shown in fig. 5 consists of the following parts: multiple first threadiness portion 101a, to the axis with supporting mass 10 The parallel direction in line direction extends, and is arranged as round shape;And multiple second threadiness portion 101b, along with the axis of supporting mass 10 Round centered on line extends and connect with each first threadiness portion 101a.The shape of the mesh 102 of supporting mass 10 shown in fig. 5 As square.Supporting mass 10 shown in fig. 6 consists of the following parts: multiple first threadiness portion 101a, to relative to bearing The direction of the axis direction inclination predetermined angular of body 10 extends;And multiple second threadiness portion 101b, to relative to supporting mass 10 axis direction extends to the direction of opposite with the first threadiness portion 101a direction inclination predetermined angular, and with it is each first linear Portion 101a connection.The shape of the mesh 102 of supporting mass 10 shown in fig. 6 becomes diamond shape.
As the section shape in linear portion 101, such as polygonal cross-section, circular section can be set as etc..In addition, threadiness portion 101 line footpath can for example be properly set in the degree of hollow-fibre membrane 2 that can support swelling.Supporting mass 10 is for example from system From the perspective of making easiness, preferably it is made of resin.As resin used in supporting mass 10, for example, can include polypropylene, Polyethylene, preferably ultra-high molecular weight polyethylene, high density polyethylene (HDPE).
Also, supporting mass 10 configures on the direction central axis L1 of hollow fiber membrane bundle 3 the one of hollow fiber membrane bundle 3 Between side end face 3c and another side end face 3d.That is, supporting mass 10 is accommodated in hollow fiber membrane bundle 3 without from hollow-fibre membrane A side end face 3c and another side end face 3d for beam 3 is prominent.In this case, supporting mass 10 preferably has on the direction central axis L1 There is length identical with hollow fiber membrane bundle 3, but can also be shorter than hollow fiber membrane bundle 3.In addition, supporting mass is shown in FIG. 2 10 and hollow fiber membrane bundle 3 become the both ends of the surface of identical length and supporting mass 10 and be located at a side end face of hollow fiber membrane bundle 3 The case where 3c and another side end face 3d.
Shell 4 has cylinder 5, the first cover 6 and the second cover 7.
Cylinder 5 is the position for accommodating hollow fiber membrane bundle 3.Cylinder 5 is formed as the cylindrical shape that L extends in the axial direction, cylinder The both ends of body 5 are open.First cover 6 is installed in the side open end 5a of the open end of the side as cylinder 5, The other side open end 5b of the open end of the other side as cylinder 5 is equipped with the second cover 7.First cover 6 and Two covers 7 can such as be threadably engaged relative to the installation example of cylinder 5, be fitted into, being bonded to carry out.
First cover 6 is formed as with the cone cell of path far from cylinder 5.It is formed in the top end part of the first cover 6 Supply mouth 6a for supplying from ink to the first cover 6.Supply mouth 6a is circular opening and the center for being formed in cylinder 5 On axis L2.Interconnecting piece 6b for connecting the first ink supply conduit 14 in a manner of it can assemble and disassemble automatically supplies mouthful 6a along axis Line direction L extends.Interconnecting piece 6b is formed as cylindric, is formed in the inner peripheral surface of interconnecting piece 6b and revolves for the first ink supply conduit 14 The internal screw thread 6c entered.In addition, the connection between interconnecting piece 6b and the first ink supply conduit 14 is not limited to be threadedly engaged, such as It can be carried out by being fitted into.
Second cover 7 is formed as with the cone cell of path far from cylinder 5.It is formed in the top end part of the second cover 7 For the air entry 7a from 4 interior suction bleed body of shell.Air entry 7a is circular opening and the central axis L2 for being formed in cylinder 5 On.Interconnecting piece 7b self-priming port 7a for connecting air intake duct 17 in a manner of it can assemble and disassemble extends along axis direction L.Even Socket part 7b is formed as cylindric, and the internal screw thread 7c screwed in for air intake duct 17 is formed in the inner peripheral surface of interconnecting piece 7b.In addition, connection Connection between portion 7b and air intake duct 17 is not limited to be threadedly engaged, such as can also be carried out by being fitted into.
The outlet 5d for ink to be discharged from shell 4 is formed in the side wall 5c of cylinder 5.Outlet 5d is circular Opening.The position of the side other side open end 5b is leaned in the center that outlet 5d is formed in the axis direction L than cylinder 5.For inciting somebody to action The interconnecting piece 5e that second ink supply conduit 15 is connected in a manner of it can assemble and disassemble from outlet 5d along with axis direction L-orthogonal Direction extends.Interconnecting piece 5e is formed as cylindric, is formed in the inner peripheral surface of interconnecting piece 5e and screws in for the second ink supply conduit 15 Internal screw thread 5f.In addition, the connection between outlet 5d and the second ink supply conduit 15 is not limited to be threadedly engaged, such as can also To be carried out by being fitted into.
From the viewpoint of ease of manufacturing, preferably cylinder 5, the first cover 6 and the second cover 7 are made of resin.At this In the case of, cylinder 5, the first cover 6 and the second cover 7 can be manufactured by being injection moulded.In addition, considering using UV ink In the case that water is as ink, cylinder 5, the first cover 6 and the second cover 7 do not make the color example of ultraviolet light transmission preferably Such as black.
In addition, the side perineurium end 3e of hollow fiber membrane bundle 3 is fixed on the side open end of cylinder 5 using sealing 8 Portion 5a, the other side perineurium end 3f of hollow fiber membrane bundle 3 are fixed on the other side open end 5b of cylinder 5 using sealing 9.
Sealing 8 is formed by resin.As the resin for sealing 8, for example, epoxy resin can be enumerated, polyurethane tree Rouge, ultraviolet curing resin, the polyolefin resins such as polyethylene, polypropylene.Sealing 8 is vertical with the axis direction L of cylinder 5 Section in be filled in whole region in addition to hollow portion 3b.That is, sealing 8 is only filled between hollow-fibre membrane 2, is hollow (referring to Fig. 3 (a)) between the inside and hollow fiber membrane bundle 3 and the inner wall of cylinder 5 of tunica fibrosa 2.Also, in 8 shape of sealing At there is the communication port 8a that will be connected to outside hollow portion 3b and cylinder 5.Therefore, mouthful 6a is automatically supplied to supply to the ink in the first cover 6 Water is only supplied from communication port 8a into cylinder 5, in cylinder 5, is supplied to the outside of hollow-fibre membrane 2.
Sealing 9 is formed by resin identical with sealing 8.Sealing 9 with the axis direction L of cylinder 5 is vertical cuts open The whole region in addition to the inside of hollow-fibre membrane 2 is filled in face.That is, sealing 9 is not filled in hollow-fibre membrane 2 Inside and be only filled between hollow-fibre membrane 2, (ginseng between hollow fiber membrane bundle 3 and the inner wall of cylinder 5 and in hollow portion 3b According to Fig. 3 (b)).In addition, also existing in the case where the other side perineurium end 3f of hollow fiber membrane bundle 3 is also configured with supporting mass 10 Between hollow fiber membrane bundle 3 and supporting mass 10, sealing 9 is filled in the mesh 102 of supporting mass 10.Therefore, prevent supply to cylinder The ink of body 5 is more than that sealing 9 flows into 7 side of the second cover.In addition, due in the inside and the second cover 7 of hollow-fibre membrane 2 Side is connected, therefore, by utilizing suction pump 16 from air entry 7a air-breathing, to depressurize to the inside of hollow-fibre membrane 2.
Sealing 8 is for example with the central axis of the central axis L1 of the side perineurium end 3e of hollow fiber membrane bundle 3 and cylinder 5 The side perineurium end 3e of hollow fiber membrane bundle 3 is fixed on cylinder 5 by the mode that line L2 becomes same position.In addition, sealing 9 Such as become identical with the central axis L2 of the central axis L1 of the other side perineurium end 3f of hollow fiber membrane bundle 3 and cylinder 5 The other side perineurium end 3f of hollow fiber membrane bundle 3 is fixed on cylinder 5 by the mode of position.In addition, sealing 9 can also be such as With the central axis L1 of the other side perineurium end 3f of hollow fiber membrane bundle 3 be located relative to the central axis L2 of cylinder 5 to The mode of the opposite side eccentric position in that side locating for outlet 5d is by the other side perineurium end 3f of hollow fiber membrane bundle 3 It is fixed on cylinder 5.
Additionally, it is preferred that the ratio between length on the internal diameter D of cylinder 5 and the axis direction L of hollow fiber membrane bundle 3 is 1:1 ~1:6.
Then, it is illustrated for the degassing method of the ink using doughnut degassing component 1.
It supplies from ink storage unit 12 to the ink of the first ink supply conduit 14 from supply mouth 6a and is supplied into the first cover 6 It gives.Supply is supplied by communication port 8a to hollow portion 3b to the ink in the first cover 6.It supplies to the ink of hollow portion 3b and passes through The mesh 102 of supporting mass 10 is supplied to the gap between hollow-fibre membrane 2, and passes through radial direction of the gap to cylinder 5 Outside flowing.That is, the ink of supply to hollow portion 3b supply in cylinder 5 to the outside of hollow-fibre membrane 2.At this point, by making Suction pump 16 acts, from air entry 7a to air-breathing is carried out in shell 4, so that the inside of hollow-fibre membrane 2 be made to depressurize.In this way, When ink is by between hollow-fibre membrane 2, dissolved gas and bubble are inhaled into from ink to the inside of hollow-fibre membrane 2.By This, carries out the degassing of ink.Also, the ink after deaerating flows into the second ink supply conduit 15 from outlet 5d, from the second ink Supply pipe 15 is supplied to ink gun 13.
At this point, hollow-fibre membrane 2 is gradually swollen by ink as time goes by.In addition, the speed that hollow-fibre membrane 2 is swollen And degree changes according to the material of hollow-fibre membrane 2, film shape, film form etc., in addition, also according to the type of ink It changes.For example, as the material of hollow-fibre membrane 2, being dispersed in using by ceramic powders using polyolefin-based resins In the case that ceramic ink is made of in solvent as ink, the swelling rate and degree of swelling of hollow-fibre membrane 2 are especially Become larger.Also, the hollow-fibre membrane 2 of swelling is intended to distort and become hollow portion 3b flat and to be entered.
Herein, it as solvent used in ceramic ink, as long as not damaging effect of the invention, is not particularly limited, It can be included for well known solvent if specifically illustrating: the glycols such as ethylene glycol, diethylene glycol, triethylene glycol, 3- The glycol monoalkyls ethers such as methoxyl group -3- methyl butanol, 3- methoxybutanol, diethylene glycol diethyl ether, diethylene glycol methyl second The glycol dialkyl ethers classes, second such as base ether, Diethylene Glycol Butyl Methyl Ether, triethylene glycol methyl butyl ether, tetraethyleneglycol dimethyl ether The diol monoacetates such as glycol monobutyl ether acetic acid esters, butyl carbitol acetate, propylene glycol methyl ether acetate class, glycol The alcohols such as oxalic acid esters, ethyl alcohol, normal propyl alcohol, isopropanol, n-butanol, 2- butanol, 2- methyl-1-propyl alcohol, acetone, methyl ethyl ketone, Methyl n-propyl ketone, methyl isopropyl Ketone, methyl n-butyl ketone, methyl iso-butyl ketone (MIBK), methyl-n-amyl ketone, methyl isopentyl Ketone, metacetone, ethyl n-propyl ketone, ethyl isopropyl ketone, ethyl normal-butyl ketone, ethyl isobutylo ketone, diη-propyl ketone, two The ketones such as isobutyl ketone, cyclohexanone, methyl cyclohexanone, isophorone, methyl acetate, ethyl acetate, n-propyl acetate, acetic acid are different Propyl ester, n-butyl acetate, isobutyl acetate, hexyl acetate, octyl acetate, acetic acid -2- methyl propyl ester, acetic acid -3- methylbutyl butenoate The lactic acid esters such as equal acetate esters, methyl lactate, ethyl lactate, butyl lactate, n-hexane, isohexane, n -nonane, isononane, The unsaturation such as the saturated hydrocarbons such as dodecane, Permethyl 99A, 1- hexene, 1- heptene, 1- octene hydro carbons, hexamethylene, cycloheptane, ring are pungent The cyclic saturated hydrocarbons such as alkane, cyclodecane, decahydronaphthalene, cyclohexene, cycloheptene, cyclo-octene, 1,1,3,5,7- cyclo-octatetraene, ring 12 Aromatic hydrocarbon, terpene, ethers, cyclic imide, the 3- methyl-such as the cyclic annular unsaturated hydro carbons such as carbene, benzene,toluene,xylene 3- alkyl -2- the oxazolidones such as 2- oxazolidone, 3- ethyl -2- oxazolidone, n-methyl-2-pyrrolidone, N- ethyl -2- pyrrole The nitrogen-containing solvents such as the lactones such as the N- such as pyrrolidone alkyl pyrrolidone, gamma-butyrolacton, 6-caprolactone, β-alkoxypropan amide.
However, since supporting mass 10 is abutted with the inner peripheral surface 3a of hollow fiber membrane bundle 3 for dividing hollow portion 3b, energy Enough doughnuts 2 for inhibiting swelling distort and become flat, and inhibit to enter hollow portion 3b.As a result, de- in doughnut In pneumatic module 1, even if hollow-fibre membrane 2 is swollen, the flow path for being also able to suppress ink narrows or blocks, therefore, is able to suppress The pressure loss of ink steeply rises.
As described above, the degassing component 1 of doughnut involved in present embodiment is by the outside of hollow-fibre membrane 2 It supplies ink and the external pouring type to be de-gassed to ink is depressurized to the inside of hollow-fibre membrane 2.Therefore, can The pressure loss of ink is inhibited lower.As a result, for example, even if in the self weight using ink from ink storage unit 12 to ink-jet Doughnut degassing component 1 is carried in the ink-jet printer 11 of first 13 supply ink, also can suitably be supplied to ink gun 13 Ink.
Also, in doughnut degassing component 1, due to having the branch abutted with the inner peripheral surface 3a of hollow fiber membrane bundle 3 Body 10 is held, therefore utilizes radial direction center side bearing each hollow-fibre membrane 2 of the supporting mass 10 from hollow fiber membrane bundle 3.Therefore, Even if hollow-fibre membrane 2 is swollen because of ink, it is also able to suppress the distortion of hollow-fibre membrane 2.That is, inhibiting the hollow-fibre membrane of swelling 2 enter the hollow portion 3b for becoming the hollow fiber membrane bundle 2 of flow path of ink and hollow portion 3b are made to narrow or block.In addition, The gap turn narrow or obstruction being able to suppress between the hollow-fibre membrane 2 of the hollow-fibre membrane 2 of swelling.As described above, in even if Empty fiber membrane 2 is swollen, and the flow path for being also able to suppress ink narrows or blocks, therefore is able to suppress doughnut degassing component 1 The pressure loss steeply rise.
In addition, supporting mass 10 be cylindrical shape, therefore can the inner peripheral surface 3a to hollow fiber membrane bundle 3 integrally support.
In addition, due to supporting mass 10 be it is netted, pressure loss when being able to suppress ink by supporting mass 10 rises. Thereby, it is possible to inhibit the initial pressure rising of doughnut degassing component.
In addition, by the way that the percent opening of supporting mass 10 is set as 10% or more, so as to suitably inhibit doughnut de- The initial pressure of pneumatic module rises, by the way that the percent opening of supporting mass 10 is set as 80% hereinafter, so as to inhibit supporting mass 10 To the excessive descent of the supporting force of hollow-fibre membrane 2.
In addition, since the configuration of supporting mass 10 is between a side end face 3c and another side end face 3d for hollow fiber membrane bundle 3, because Supporting mass 10 can be housed in cylinder 5 by this.As a result, since doughnut degassing component 1 is easy to make, it is able to suppress The manufacturing cost of doughnut degassing component 1.
In addition, in the ink-jet printer 11 involved in present embodiment, there is the first ink supply conduit 14 and the Doughnut degassing component 1, therefore, the pressure being able to suppress in ink flow path are installed in the ink flow path of two ink supply conduits 15 Power loss steeply rises, and can chronically be de-gassed to ink.It as a result, for example will even with the self weight of ink The ink-jet printer 11 that ink is supplied from ink storage unit 12 to ink gun 13 also suitably can supply ink to ink gun 13 Water.
More than, the preferred embodiment of the present invention is illustrated, but the present invention is not limited to the above embodiments.Example It such as, in the above-described embodiment, is that cylindric situation is illustrated as supporting mass, but as long as doughnut can be supported Film simultaneously inhibits hollow-fibre membrane to enter hollow portion, then supporting mass can be arbitrary shape.In addition, in the above-described embodiment, As supporting mass be netted situation be illustrated, but as long as be can support hollow-fibre membrane and inhibit hollow-fibre membrane into Enter hollow portion, then supporting mass may not be netted.In addition, in the above-described embodiment, being illustrated as the liquid being de-gassed Ink and illustrated out, but the liquid to deaerate is also possible to the liquid other than ink.In addition, in the above-described embodiment, Ink is supplied for mouthful 6a is automatically supplied into shell 4, is said the structure of the ink discharge in shell 4 from outlet 5d It is bright, but the entrance and exit of ink can also be inverted.That is, be also possible to supply ink into shell 4 from outlet 5d, from The structure that ink in shell 4 is discharged supply mouth 6a.
Embodiment
In the following, being illustrated to the embodiment of the present invention, but the present invention is not limited to embodiments below.
Make the doughnut of doughnut the degassing component and comparative example 1 and comparative example 2 of 1~embodiment of embodiment 3 Deaerate component, in hookup shown in Fig. 7, measures the rising of the pressure loss generated by making ink circulation.
(hookup)
As shown in fig. 7, the first ink supply conduit of the ink tank 21 for storing ink will be inserted into hookup 22 connect with the supply mouth of doughnut degassing component, are equipped on the first ink supply conduit 22 by the first ink supply conduit 22 The pressure of ink of the interior ink into the first ink supply conduit 22 of pump 23 and measurement of doughnut degassing components side liquor charging Head pressure gage 24.In addition, the second ink supply conduit 25 and hollow fibre of ink tank 21 will be inserted into hookup The outlet connection of dimension degassing component, the ink being equipped on the second ink supply conduit 25 in the second ink supply conduit 25 of measurement Pressure discharge gage 26.
(embodiment 1)
The doughnut degassing component of embodiment 1 is produced as follows.
In embodiment 1, as base assembly, the doughnut using the SEPAREL EF-G5 of Dainippon Ink Chemicals is de- Pneumatic module.Also, in the base assembly, supporting mass is made to be connected to the inner peripheral surface of hollow fiber membrane bundle and embodiment 1 is made Hollow fiber film assembly, wherein the supporting mass be by the big Japanese plastics plastic wire of big Nihon Plast Co., Ltd. (Japanese: ダ イ プ ラ ネ ト ロ ン シ ー ト) (width of mesh (3mm × 3mm), thickness (1.4mm)) by caliber φ become 14mm in a manner of roll up At cylindrical shape.It is concretely demonstrated, produces the side wall with heterogeneity construction using poly 4-methylpene-1 as material The hollow-fibre membrane of 180 μm of 100 μm of internal diameter, the outer diameter of (film).Then, to have 61 hollow-fibre membranes in every 1 inch Mode is woven into curtain shape using multiple hollow-fibre membranes that organizine arranges same column, to produce the hollow fibre of specific length Tie up diaphragm.Then, doughnut diaphragm is wound on cylindric supporting mass, produces cylindric hollow fiber membrane bundle.It connects , the side perineurium end of hollow fiber membrane bundle is fixed on by the cylinder of hollow fiber membrane bundle insertion shell using sealing The side open end of cylinder, and the another of cylinder is fixed in the other side perineurium end of hollow fiber membrane bundle using sealing Side open end.Then, the first cover is installed in the side open end of cylinder, and in the other side open end of cylinder Second cover is installed, to produce the doughnut degassing component of embodiment 1.The doughnut of embodiment 1 is shown in table 1 The essential condition of degassing component.
(embodiment 2)
As supporting mass, plastics network management (PX-225-2000, BK, the outer diameter of gloomy six Chemical Co., Ltd. are used (14.6mm), internal diameter (13.6mm), spacing (squeeze out (10mm, wide reference value (0.8mm), caliber φ (14mm)).Other items Part produces the doughnut degassing component of embodiment 2 same as Example 1ly.The doughnut of embodiment 2 is shown in table 1 The essential condition of degassing component.
(embodiment 3)
As supporting mass, plastics network management (PX-225-2000, BK, the outer diameter of gloomy six Chemical Co., Ltd. are used (14.6mm), internal diameter (13.6mm), spacing (squeezing out (10mm), wide reference value (0.8mm)), caliber φ (10mm).Other Part produces the doughnut degassing component of embodiment 3 similarly to Example 1.The doughnut of embodiment 3 is shown in table 1 The essential condition of degassing component.
(comparative example 1)
Other than extracting supporting mass from hollow fiber membrane bundle after the resin solidification in sealing, with embodiment 2 The doughnut degassing component of comparative example 1 is produced in the same manner.The component that is, doughnut as comparative example 1 deaerates, uses The doughnut degassing component of the SEPAREL EF-G5 of Dainippon Ink Chemicals.The doughnut that comparative example 1 is shown in table 1 is de- The essential condition of pneumatic module.
[table 1]
(experiment)
Experiment 1 in, using contain hydrocarbon solvent (Exxon Mobil Co. Ltd. system " Exxsol (registered trademark) D130 " (Hydrocarbones, C14-C18, n-alkanes, iso-alkanes, cyclics, aromatics etc.)) ceramic ink, And the set temperature of ink is set as 45 DEG C.
Also, the setting flow of ink (1) is set as 200g/min and makes ink circulation, will be measured by head pressure gage 24 Difference between inlet pressure out and the outlet pressure measured by discharge gage 26 goes out as Calculation of pressure loss, and benefit The flow of ink is measured with flow measurement (not shown).Then, the setting flow of ink is set as 1000g/min and makes ink by (2) Water circulation, will be between the inlet pressure that measured by head pressure gage 24 and the outlet pressure measured by discharge gage 26 Difference goes out as Calculation of pressure loss, and the flow of ink is measured using flow measurement (not shown).In addition, will by (1) and (2) the calculated pressure loss is as initial value.
Then, the setting flow of ink is set as 1000g/min and places the arbitrary time by (3).Then, (4) are by ink Setting flow be set as 200g/min and make ink circulation, by the inlet pressure measured by head pressure gage 24 and by outlet press The difference between outlet pressure that power meter 26 is measured goes out as Calculation of pressure loss, and is measured using flow measurement (not shown) The flow of ink.Then, the setting flow of ink is set as 1000g/min and makes ink circulation by (5), will be by head pressure gage 24 Difference between the inlet pressure measured and the outlet pressure measured by discharge gage 26 goes out as Calculation of pressure loss, and And the flow of ink is measured using flow measurement (not shown).In addition, the standing time as (3), small for 23 in embodiment 1 When, in example 2 for 24 hours and 47 hours both, in embodiment 3 for 23 hours and 47 hours both.
Also, it will be by (1) and (2) the calculated pressure loss relative to by (4) and (5) the calculated pressure loss Ratio calculated as the climbing of the pressure loss.The experiment of 1~embodiment of embodiment 3 and comparative example 1 is shown in table 2 As a result.In addition, the experimental result of embodiment 1 is made into curve graph and is shown in FIG. 8, the experimental result of embodiment 2 is made into Curve graph is shown in FIG. 9, and the experimental result of embodiment 3 is made into curve graph and is shown in FIG. 10, by the experiment knot of comparative example 1 Fruit is made into curve graph and is shown in FIG. 11.
[table 2]
(evaluation 1)
As shown in table 2 and Fig. 8~Figure 10, in 1~embodiment of embodiment 3 without discovery the pressure loss sharply on It rises.According to the result it is found that by with supporting mass, the effect steeply risen for inhibiting the pressure loss can be obtained.In addition, It is found that hollow-fibre membrane can be supported as long as supporting mass is with a thickness of 1mm or so.In addition, knowing the caliber φ of supporting mass not The case where by being still 14mm for the case where 10mm, as a result variation is little.In addition, will also realize that, in 1~embodiment of embodiment 3 In, after ink circulation 1 day or so, the pressure loss is without too big variation.
(evaluation 2)
As shown in table 2, Fig. 9 and Figure 11, as the result after being compared to embodiment 2 and comparative example 1 it is found that in reality It applies in example 2, does not find steeply rising for the pressure loss, but in comparative example 1, the pressure damage within the time for not yet passing through 1 day Mistake has just steeply risen.Particularly, it is found that the climbing of the pressure loss when setting flow of ink to be set as to 1000g/min is bright It is aobvious.According to the result it is found that compared with not having the case where supporting mass, by the way that with supporting mass, the pressure that can be inhibited is damaged Lose the effect steeply risen.In addition, will also realize that, in comparative example 1, after ink circulation 1 day or so time, the pressure loss Without too big variation.
Description of symbols
1 doughnut degassing component, 2 hollow-fibre membranes, 3 hollow fiber membrane bundles, 3a inner peripheral surface, 3b hollow portion, the side 3c End face, another side end face 3d, the side 3e perineurium end, the other side 3f perineurium end, 4 shells, 5 cylinders, the side 5a open end, The other side 5b open end, 5c side wall, 5d outlet, 5e interconnecting piece, 5f internal screw thread, 6 first covers, 6a supply mouth, 6b connection Portion, 6c internal screw thread, 7 second covers, 7a air entry, 7b interconnecting piece, 7c internal screw thread, 8 sealings, 8a communication port, 9 sealings, 10 Supporting mass, 101 threadiness portions, the first threadiness of 101a portion, the second threadiness of 101b portion, 102 meshes, 11 ink-jet printers, the storage of 12 inks Deposit portion, 13 ink guns, 14 first ink supply conduits, 15 second ink supply conduits, 16 suction pumps, 17 air intake ducts, 21 ink tanks, 22 first ink supply conduits, 23 pumps, 24 head pressure gages, 25 second ink supply conduits, 26 discharge gages, L axis direction, L1 The central axis of the central axis of hollow fiber membrane bundle, L2 cylinder.

Claims (7)

  1. The component 1. a kind of doughnut deaerates, includes hollow fiber membrane bundle, is by more hollow-fibre membrane boundlings into cylinder Made of shape;And cylinder, it accommodates the hollow fiber membrane bundle and simultaneously extends in the axial direction, by from the hollow-fibre membrane The hollow portion of beam is to the gap supply liquid between the hollow-fibre membrane and to subtracting on the inside of the hollow-fibre membrane Pressure, to be de-gassed to the liquid, wherein
    The doughnut degassing component has the supporting mass abutted with the inner peripheral surface of the hollow fiber membrane bundle,
    The supporting mass is netted.
  2. The component 2. a kind of doughnut deaerates, includes hollow fiber membrane bundle, is by more hollow-fibre membrane boundlings into cylinder Made of shape;And cylinder, it accommodates the hollow fiber membrane bundle and simultaneously extends in the axial direction, by from the hollow-fibre membrane The hollow portion of beam is to the gap supply liquid between the hollow-fibre membrane and to subtracting on the inside of the hollow-fibre membrane Pressure, to be de-gassed to the liquid, wherein
    The doughnut degassing component has the supporting mass abutted with the inner peripheral surface of the hollow fiber membrane bundle,
    The supporting mass configures in the central axial direction of the hollow-fibre membrane in a side of the hollow fiber membrane bundle Between face and another side end face.
  3. The component 3. doughnut according to claim 1 or 2 deaerates, wherein
    The supporting mass is cylindrical shape.
  4. The component 4. doughnut according to claim 1 deaerates, wherein
    The liquid is UV ink or ceramic ink.
  5. The component 5. doughnut according to claim 4 deaerates, wherein
    The liquid as the ceramic ink is from comprising glycols, glycol monoalkyl ethers, glycol dialkyl ether class, two Alcohol monoacetate class, glycol diacetate class, alcohols, ketone, acetate esters, lactic acid lipid, saturated hydrocarbons, unsaturated hydro carbons, Cyclic saturated hydrocarbons, cyclic annular unsaturated hydro carbons, aromatic hydrocarbon, terpene, ethers, cyclic imide, 3- methyl -2- oxazolidine Ketone, N- alkyl pyrrolidone, lactone, nitrogen-containing solvent group in at least one that selects.
  6. 6. a kind of ink-jet printer will be stored in the ink in ink storage unit by ink flow path and supply to ink gun, In,
    Doughnut degassing component according to any one of claims 1 to 5 is installed in the ink flow path.
  7. 7. a kind of degassing method of liquid, wherein
    It is deaerated component using doughnut described in as claimed in claim 1 or 22, by the hollow portion from the hollow fiber membrane bundle to institute The gap supply liquid between hollow-fibre membrane is stated, and to depressurizing on the inside of the hollow-fibre membrane, to the liquid Body is de-gassed.
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CA2969317A1 (en) 2016-06-30
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EP3238943A4 (en) 2018-08-01
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JP2016120489A (en) 2016-07-07
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KR20170078735A (en) 2017-07-07
EP3238943A1 (en) 2017-11-01

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